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A baby in a bouncer bounces up and down with a period of 1.2s and amplitude of 90mm. Calculate the baby's maximum velocity.

Relevant equations: 1) frequency = 1/ time period; 2) v(max) = Amplitude*(2 pi frequency) First, we need to calculate the frequency of the baby's oscillation. That is, the number of times, per second, that t...
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Answered by Sam H. • Physics tutor
4427 Views

What is the area of triangle ABC where AB = 5 cm, BC = 12 cm and angle ABC = 50 degrees?

To find the area of a triangle where the length of the base and perpendicular heights are not known, use the sine rule to find the area. This is: Area = 0.5 x a x b x sin(angle between lengths a and b) Hence...
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Answered by Aminah S. • Maths tutor
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When should you use the subjunctive?

To try and tackle this, my teacher taught me to use the acronym WEDDING: WISHES - using verbs such as souhaiter que or préférer que to show wishes of one person for another person. EMOTIONS - an expression o...
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Answered by Louis P. • French tutor
6674 Views

How should I structure an essay?

First, you need to give a brief introduction proving you understand the question and outlining your points and your argument. Each paragraph should then be a point of your argument, where you state your poin...
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3201 Views

My essay feedback says I need to go into more depth. How do I do this?

For history essays it is easy to throw in a lot of dates and quotes and feel as if you are backing up your argument effectively because you have provided "evidence". You must ensure however, that y...
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Answered by Anna B. • History tutor
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